Slightly off topic; I would love to see some form of what Scala calls
implicits in swift. For exactly this reason.
On Mon, 27 Jul 2015 05:10 Rick Mann wrote:
>
> > On Jul 26, 2015, at 20:57 , Jens Alfke wrote:
> >
> >
> >> On Jul 26, 2015, at 4:50 PM, Quincey Morris <
> quinceymor...@rivergates
> On Jul 26, 2015, at 20:57 , Jens Alfke wrote:
>
>
>> On Jul 26, 2015, at 4:50 PM, Quincey Morris
>> wrote:
>>
>> No. Swift doesn’t convert between numeric types automatically, so Double —>
>> CGFloat produces an error.
>
> I’m guessing this is only a problem when building 32-bit? Because
> On Jul 26, 2015, at 4:50 PM, Quincey Morris
> wrote:
>
> No. Swift doesn’t convert between numeric types automatically, so Double —>
> CGFloat produces an error.
I’m guessing this is only a problem when building 32-bit? Because in 64-bit,
CGFloat is equivalent to Double, so there shouldn’t
When the file arrives, verify that the contents of it have also arrived. It's
possible you may just be processing that a file was created but nothing yet has
been put into it.
--
Gary L. Wade (Sent from my iPad)
http://www.garywade.com/
> On Jul 26, 2015, at 2:28 PM, Robert Martin wrote:
>
> I
On Jul 26, 2015, at 17:42 , Rick Mann wrote:
>
> So, why can I do this?
>
> let n : NSNumber = M_PI
That’s bridged, not converted. :)
The Swift compiler has built-in knowledge of what can be bridged, and does a
typecast or value conversion according to context.
__
> On Jul 26, 2015, at 16:50 , Quincey Morris
> wrote:
>
> On Jul 26, 2015, at 16:38 , Rick Mann wrote:
>>
>> So, is a literal 0.0 not of type Double?
>
> No, it’s a numeric literal, so it has no numeric type. However your ‘addArc’
> function requires CGFloat parameters. Literal 0.0 is conv
On Jul 26, 2015, at 16:38 , Rick Mann wrote:
>
> So, is a literal 0.0 not of type Double?
No, it’s a numeric literal, so it has no numeric type. However your ‘addArc’
function requires CGFloat parameters. Literal 0.0 is convertible to CGFloat,
but Double M_PI isn’t convertible automatically.
> . That’s why I was asking about a more realistic example of the problem
> you’re trying to solve.
Point taken.
This was just a “trivial” … well it seems not that trivial…example to deepen my
understanding of Generics. So, I thank you, and will repost with a more
specific example if and whe
On Jul 26, 2015, at 16:30 , Michael de Haan wrote:
>
> func genericFor(s:String) -> T {
>
>return T(s)! // error. ’T’ cannot be constructed because it has no
> accessible initializers
> }
This *generic* definition asks for an invocation of ‘init (_ s: String)’ *for
any type that satis
> func genericFor(s:String) -> T {
>
>return T(s)! // error. ’T’ cannot be constructed because it has no
> accessible initializers
> }
At compile time there is no way of determining if T has an initializer that
takes a string. You could do something like this
protocol Ini
> On Jul 26, 2015, at 16:34 , Quincey Morris
> wrote:
>
> On Jul 26, 2015, at 16:29 , Rick Mann wrote:
>>
>> addArc(CGPoint(x: 0, y: 0), 50.0, 0.0, M_PI)
>
> The problem in this case is that M_PI is a Double variable in Swift, not a
> compile time constant like in Obj-C. You will unfortunat
On Jul 26, 2015, at 16:29 , Rick Mann wrote:
>
> addArc(CGPoint(x: 0, y: 0), 50.0, 0.0, M_PI)
The problem in this case is that M_PI is a Double variable in Swift, not a
compile time constant like in Obj-C. You will unfortunately have to wrap it in
CGFloat(), then the constants should work fine
Also weird, I only have to cast the last two arguments, not the second.
> On Jul 26, 2015, at 16:07 , Quincey Morris
> wrote:
>
> On Jul 26, 2015, at 15:57 , Rick Mann wrote:
>>
>> I'm finding it a bit cumbersome to use CGFloat in graphics code in Swift,
>> because the compiler won't let me
>
>
> What you really need to do depends on what you’re really trying to achieve.
Sorry, it’s been a long day :-)
I am really trying to understand this. So….. given this… and I think this will
make sense now,
*
func intFor(s:String) -> Int {
return Int(s)!
}
func ge
> On Jul 26, 2015, at 16:07 , Quincey Morris
> wrote:
>
> On Jul 26, 2015, at 15:57 , Rick Mann wrote:
>>
>> I'm finding it a bit cumbersome to use CGFloat in graphics code in Swift,
>> because the compiler won't let me pass a floating-point literal to a
>> parameter that takes a CGFloat. I
On Jul 26, 2015, at 15:49 , Michael de Haan wrote:
>
> func genericTFor(s:String) -> T {
>
>return T(s)!
>
> }
>
>
>
> let intFromStr = intFor("9")
> let intFromStrB:Double = genericTFor("9")
>
>
> in other words, write a generic function that will return an Int, Doub
On Jul 26, 2015, at 15:57 , Rick Mann wrote:
>
> I'm finding it a bit cumbersome to use CGFloat in graphics code in Swift,
> because the compiler won't let me pass a floating-point literal to a
> parameter that takes a CGFloat. I have to wrap them all in CGFloat().
I’m not seeing this. Do you
> On 27 Jul 2015, at 7:11 am, Gabriel Zachmann wrote:
>
> in Scripting Bridge to retrieve photos from iPhoto-now-Photos,
Don’t use Scripting Bridge for this. Since 10.9 there’s MLMediaLibrary and
related classes which provide access to various media, including iPhoto and
Photos content.
—Gr
I'm finding it a bit cumbersome to use CGFloat in graphics code in Swift,
because the compiler won't let me pass a floating-point literal to a parameter
that takes a CGFloat. I have to wrap them all in CGFloat().
This seems really, well, cumbersome. Why does the language impose this burden?
Is
Oops… I should have called it genericTfor etc as in:
>>>
func intFor(s:String) -> Int {
return Int(s)!
}
func genericTFor(s:String) -> T {
return T(s)!
}
let intFromStr = intFor("9")
let intFromStrB:Double = genericTFor("9")
in oth
I’m writing a coreData helper which will rely on Generics.
Could I get some input?
I have synthesized the problem down to this somewhat nonsensical code.
From Playground:
func intFor(s:String) -> Int {
return Int(s)!
}
func genericIntFor(s:String) -> T {
r
Thanks Jens, I’ll test for NSNulls instead. I know the dictionary is valid
because after I read it with dictionaryWithContentsOfFile:, I log it, and it
‘looks' fine…
> On Jul 26, 2015, at 5:44 PM, Jens Alfke wrote:
>
>
>> On Jul 26, 2015, at 2:28 PM, Robert Martin wrote:
>>
>> I get a null
> On Jul 26, 2015, at 2:28 PM, Robert Martin wrote:
>
> I get a null, and an error (200) that the plist contains null.
>
> Before I make that call, I put in a check for nulls, but none are found:
You’re checking for nil pointers. (Which are illegal in Foundation collections,
so you’ll never f
I’m having some issues. I’m tracking a folder that is I watch via kqueue, and
if a .plist arrives, I process it immediately. The plist contains a dictionary,
which is successfully read with dictionaryWithContentsOfFile:. If I log the
dictionary description, it is accurate. The dictionary only co
Dear all,
I have written a screensaver , but unfortunately, I didn't have the time to
update the source code sine OS X 10.7 .
It is still working so-so, but showing signs of code aging.
Now I would like to bring the source code up to date.
Does anybody know of some guidelines , or a list of hin
> On 26 Jul 2015, at 22:17, Ken Thomases wrote:
>
> The right approach is to subclass NSTableRowView. It's not hard. Why do you
> resist it?
>
OK, got it. Thanks for the pointers. Much appreciated!
Best
Phil
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On Jul 26, 2015, at 7:25 AM, 2551 <2551p...@gmail.com> wrote:
> I’ve been struggling with NSTableView for the last two days. All I want to do
> is ensure the alternative “gray” highlight is used on a selection
> consistently instead of the heavy blue.
My first question is why do you want to tri
Solved
Sorry for the noise List.
It was user error. I wasn’t using the WebView correctly.
Tim
> On 26 Jul 2015, at 07:30, Tim Fletcher wrote:
>
> Sorry, massive omission on my part. I'm building a desktop OS X 10.10.4
> application. Using the latest Xcode
>
> On Sunday, July 26, 2015, Jens A
I’ve been struggling with NSTableView for the last two days. All I want to do
is ensure the alternative “gray” highlight is used on a selection consistently
instead of the heavy blue. Here’s my code:
-(void) killBlue
{
NSInteger selectedRow = [_tableView selectedRow];
if ([_tableView se
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